/**
 * Copyright (C) 2012-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ninja;

/**
 * Defines a validator for authentication filters like ninja.BasicAuthFilter.
 *
 * @author James Moger
 *
 */
public interface UsernamePasswordValidator {

    /**
     * Returns true if the supplied username and password are valid.
     *
     * @param username
     * @param password
     * @return true if username and password are correct
     */
    boolean validateCredentials(String username, String password);

}
